Maybe get a workshop manual, and see if that can address whatever problem or service you haven't mentioned yet. You might be surprised just what you can do for many issues.
Also, post this query in the Spider category and explain what is going on. There are many knowledgeable people in that category who might help.
1989 Milano, Shankle Sport
1991 164S, stock
1994 164LS (~Q)
1972 Morgan 27
previously owned since 1964:
62 Morris MiniMinor 850, 67 Austin 1275 Cooper S (Downton 3/4 race), 64 Giulia Sprint GT (1st red one made), 72 Fiat 128 Sedan, 75 Alfetta Sedan, 78 Alfetta Sedan, 78 GTV, 81 GTV6, 86 GTV6